Stone



May '1924. w 1,492,558

A. C. ELPHINSTONE PERPETUAL CALENDAR Original Filed 6. 1921 2 Sheets-Sheet 1 A fllasnmesesaazna avwwtoz May 6 $924.

A. C. ELPHINSTONE PERPETUAL CALENDAR 2 Shets-Sheet 2 Original F le 1921 n mm mm. .wn

35 his flwm q Patented May 6, 1924 warren stares teases PATENT orrics.

ALEXANDER o. ELPHINSflONE, or ORANGE, mew JERSEY.

. PERPETUAL CALENDAR.

Application filed August 6, 1921, Serial No. 490,217. Renewed September 29, 1923.

To all whom it may concern:

Be it knownthat I, ALEXANDER C. ELPHIN- STONE, a citizen of the United States, and residing at Orange, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Perpetual Calendars, of which the. following is a specification, such as will enable those skilled in the art to which it appertains to make and use the same.

This invention relates to calendars and particularly to perpetual calendars or calendars'adapted to represent any complete calendar year, and the object of the invention is to provide a calendar of the class specified with a calendar unit adjustably or movably mounted in a suitable frame or holder so that any complete calendar year may be viewed through said frame or holder; a further object being to provide a calendar of the class specified with an index or key element provided with such data as to facilitate the proper adjustment or movement of the calendar unit in the frame or holder to produce a complete calendar of any year; and with these and other objects in view the invention consists in a calendar of the class specified which is simple in construction and operation, and efficient in use, and which is formed as hereinafter described and claimed.

The invention described and claimed herein is an improvement on that shown and described in a prior application filed by me Nov. 13, 1920, Serial No. 423,819, and is fully disclosed in the following specification, of which the accompanying drawing forms a part, in which the separate parts of my improvement are designated by suitable reference characters in each of the views, and in which Fig. 1 is a front view of my complete calendar and illustrating the method of its use;

Fig. 2 a front View of the calendar unit which-I employ and diagrammatically illustrating the arrangement of the numerals of the several months thereof;

Fig.3 aback view ofa part of the complete calendar as shown in Fig. 1;

Fig. 4 a back view of a part of the calendar unit shown in Fig. 2;

F ig. 5 a partial section on the line 5-5 of Fig. 1; and,

Fig. 6 an enlarged detail view of a part of an index or key element which I employ.

In practice Iprovide a suitable calendarframe or holder 10 composed of front and back walls 11 and 12, separated from each other to form a space 13 therebetween, and said front and back walls may be secured together or formed in any desired manner and of any suitable material. The front wall is provided with twelve spaced rectangular apertures 14, and the back wall with a corresponding number and similarly spaced apertures 15 only four of which is shown in Fig.3, and the front wall 11 is provided approximately centrally thereof with,

an elongated aperture 16 above which said front wall is provided with a series of seven key or reference spaces 17, 18, 19, 20, 21, 22 and 23 which, in the form of construction shown, are colored black, orange, blue, green, red, purple and yellow respectively.

I also employ a calendar unit-24 shown other words, the arrangement of the numerals in the spaces of the separate numeral sections 25 and 26 will be such as to bring the first day of January of any year under the proper day of the week, namely, Sunday to Saturday, and it will be noted that the front and back walls 11 and 12 of the frame or holder areprovided above the apertures 14 and 15 thereof with printed matter designating the separate months of the. year and also the days of the week in the usual manner.

The calendar unit 24 or the front face thereof is provided with a projecting pin 27 which when said unit is mounted in the frame or holder 10 passes through and is adapted: to operate in the elongated aperture 16, as clearly shown in Figs. 1 and 5, and a pointer 28 is mounted on the protruding portion of said pin 27 and is adapted to register with the key or reference spaces 17 to 23 inclusive as clearly illustrated in Fig. 1.

The frame or holder 10, or the front wall thereof, is also provided at one side with a vertical chamber 29 in which an index or key card 30 isadapted to be mounted, and

said card is provided centrally of one side thereof with a projecting finger plece 31 by means of which said card may be withdrawn from the holder and adjusted to any deslred position. The front wall 11 of the frame or holder 10, or that side thereof, in connection with which the card 30 is mounted, 1s provided with a vertically arranged column of figures 32, ranging from 1 to 50 inclusive, and the card 30 is provided centrally thereof with a similar column of figures 33 which range from 51 to 100, and only part of these figures are shown.

At the right of the numeral column 33, the card 30 is provided with three vertical index or key columns 34, 35 and 36, the top of which are numbered 18, 19 and 20, and these columns represent the first half of the 19th, 20th and 21st centuries, and at the left of said numeral column 33 are three other columns 37 38 and 39, the top of which are numbered 18, 19 and 20 respectively, and these columns represent the second half of said centuries.

Each of the columns 34 to 39 inclusive are provided with vertically arranged spaces, fifty in number, and these spaces, in the construction shown, are colored with the colors black, orange,- blue, green, red, purple and yellow in such manner as to facilitate the proper adjustment or movement of the calendar unit 24 in the frame or holder 10 to produce any given year or day of a year of the centuries named, and in Fig. 1 of the drawing, we have represented on the front of the calendar and in the apertures 14 thereof the year 1921, and in order to produce this result the index'or key card 30 is pulled outwardly or withdrawn from the frame or holder 10 to bring the column 35 headed by the numeral 19 along the side edge of the calendar as illustrated in Fig. 1, and by tracing down the numeral column 32 to the numeral 21 it will give the year 1921. The adjacent space on the column 35 which is colored orange as indicated by the letter O in Fig. 1 will indicate that the pointer 28 must be moved to the corresponding color, orange, in the space 18 on the front face of the calendar and the movement of the pointer 28 will correspondingly move the calendar unit 24 and produce in the apertures 14 the complete calendar year of 1921.

It will be noted that every fourth space in the columns 3 1 to 39 inclusive, is triangular in form, or the colored portion thereof is so arranged, while the other spaces are square in form in the construction shown. These triangular spaces denote leap years, and if a year to be fixed or produced on my improved calendar happens to be a leap year, thecalendar is reversed or viewed from the back wall 12 thereof and the leap year calendar whichv it is desired to produce will appear in the apertures 15 in said back wall. In other words, every year but a leap year is or can be produced in the apertures let in the front wall, while all the leap years are produced in the apertures 15 of the back wal It will also be noted that the arrange ment of the index or key references on the card 30, or in the separate columns 34 to 39 thereof, is such as to properly designate any calendar year in the 19th, 20th and 21st centuries, and while I have shown columns of colored spaces as the means for guiding an operator in producing a given year, I am not necessarily limited to this method of indexing or keying, and it will also be noted that in Fig. 1 the letters 0, B, G, R, P and Y have been used to designate the colors orange, blue, green, red, purple and yellow to simplify the illustration, but in Fig. 6 I have shown on an enlarged scale, a part of the card 30 and have indicated the colors thereon.

In order to determine the proper key or reference of a year coming within the second half of a century, as for example. the year 1955, the card 30 will be further withdrawn through the frame or holder 10 of the calendar so as to bring the column 38 into view as well as the numeral column 33, and by tracing down the column 33 to the numeral 55 and then over to the column 38 headed by the numeral 19, the key or reference color will be found, which in the present case is the color orange, will designate that the pointer 28 must be moved to the section 18 which is colored orange as is shown in Fig. 1, which operation will produce in the apertures 14 in the front wall 11 the complete calendar year 1955. be understood, however, that I am not necessarily limited to sub-dividing the centuries in the manner herein shown and described nor am I necessarily limited to the use of one card similar to the card 30, or to the number of centuries named, and various other changes in and modifications of the construction herein shown and described may be made, within the scope of the appended claims, without departing from the spirit of my invention or sacrificing its advantages.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A calendar of the class described comprising .a suitable frame provided with twelve apertures, a calendar unit movably mounted in said frame and provided with twelve calendar month sections adapted to register with said apertures to produce a complete calendar year therein, means involving reference characters for indicating the several positions in which said calendar It will siesta unit may be placedfand" an index oi key element provided with reference characters similar to said first named reference characters which facilitate the pro-per placement of said calendar unit in said frame.

said calendar unit may be placed, said'means being provided with designating characters, and an index or key element provided with reference characters designating the sepa rate years of predetermined centuries, the reference characters of said element being similar to those of said first named means whereby a predetermined calendar year of a predetermined century may be produced in the apertures of said frame.

3. A calendar of the class described comprising a suitable frame the front and back walls of which are provided with apertures, a calendar unit mounted in said frame and provided on one face with twelve calendar month sections and on the other face with twelve leap year calendar month sections, the calendar month sections of said unit being adapted to register with the apertures in the front and back walls of the frame to produce predetermined calendar years on the front and back faces of said frame, and means involving key characters or colors for facilitating the proper placement of said calendar unit in said frame to produce on the front or back faces thereof a predetermined calendar year.

4. A calendar of the class described com prising a suitable frame the front and back walls of which are provided with apertures, a calendar unit mounted in said frame and provided on one face with twelve calendar month sections and on the other face with twelve leap year calendar month sections, the calendar month sections of said unit be ing adapted to register with the apertures in the front and back walls of the frame to produce predetermined calendar years on the front and back faces of said frame, and means involving key characters or colors for facilitating the proper placement of said calendar unit in said frame to produce on the front or back faces thereof a predetermined calendar year, said means involving a pointer device mounted in connection with said calendar unit and adapted to cooperate with said key characters or colors.

5. A calendar of the class described comprising a suitable frame the front and back walls of which are provided with apertures, a calendar unit mounted in said frame and provided on one face with twelve calendar mo rithisections and on" the other face with twelveileap year calendar month sections, the calendafmonth sections of said unit being adapted to register withthe apertures 1n the front and back walls of theframe to produce predetermined calendar years on the front and back faces of said frame, means for fa-v cilitating the proper placement of said calendar unit in said frame to produce 'on the front or back faces thereof a predetermined calcndar year, said means involving a pointer-device 'mounted in connection with said calendar unit and adapted to cooperate with fixed designating or key characters, and an index or key element'provided with correspondingdesignating or key characters for the yea-rs of predetermined centuries.

6. A calendar of the class described comwalls of which are provided with apertures,

a calendar unit movably mounted in said frame and provided on one fiICQ WIf/ll twelve calendar month sections and on the other face with twelve leap year calendar month sections, the calendar month sections of said unit being adapted to register with the apertures in the front and back walls of the frame to produce predetermined calendar years on the front and back faces of said frame, designating characters for indicating the several positions at which said calendar unit may be placed in said frame, means car ried by said calendar unit and adapted to register with said first named means, to facilitate the proper placement of said calendar unit, and an index or key. card provided with aplurality of key columns, the key characters of which correspond with said first named characters whereby a predetermined calendar year may be produced on either the front or back face of the frame of said calendar.

7. A calendar of the class described comprising a suitable frame the front and back walls of which are provided with apertures, a calender unit movably mounted in said frame and provided on one face with twelve calendar month sections and on the other face with twelve leap year calendar month sections, the calendar month sections of said unit being adapted to register with the apertures in the front and back walls of the frame to produce predetermined calendar years on the front and back faces of said frame, designating characters for indicating the several positions at which said calendar unit may be placed in said frame, means carried by said calendar unit and adapted to register with said first named means to facilitate the proper placement of said calendar unit, an index or key card provided with a plurality of century columns, means for designating the separate years of said century columns, and said century columns being provided with key characters adjacent to said designating means to facilitate the proper placement of said calendar unit in said frame to produce a predetermined calendar year of a predetermined century.

8. A calendar of the class described comprising a calendar unit provided on one face with twelve calendar month sections and on the other face with twelve leap year calendar month sections, means cooperating with said calendar unit for producing a complete calendar year on either side face thereof, and means involving key references and an index element provided with corresponding key references for facilitating the production of a predetermined calendar year.

9. A calendar of the class described comprising a calendar unit provided on one face with twelve calendar month sections and on the other face with twelve leap year calen dar month sections, means cooperating with said calendar unit for producing a complete calendar year on either side face thereof, and means involving key references and an index element provided with corresponding key references for facilitating the production of a predetermined calendar vear of a predetermined century.

10. A calendar of the class described comprising a calendar unit provided on one face with twelve calendar month sections and on the other face with twelve leap year calendar month sections, means cooperating with said calendar unit for producing a complete calendar year on either side face thereof, means involving key references and an index element provided with corresponding key references for facilitating the production of a predetermined calendar year of a predetermined century, and means for distinguishing on said index element leap years from other years.

In testimony that I claim the foregoing as my invention I have signed name in presence of the subscribing witnesses this 5th day of August, 1921.

ALEXANDER C. ELPHINSTONE.

Witnesses:

C. E. MULREANY, H. E. THOMPSON. 

